Home / 99,215.97-136,920.33-53,895.75

Finding the Fourth Proportional to 99,215.97, 136,920.33 and 53,895.75

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Solution

The fourth proportional to 99,215.97, 136,920.33 and 53,895.75 is: 74,377.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,215.97 : 136,920.33 = 53,895.75 : x
  2. Step 2: Convert to fraction form
    99,215.97/136,920.33 = 53,895.75/x
  3. Step 3: Cross multiply
    99,215.97x = 136,920.33 × 53,895.75
  4. Step 4: Simplify right side
    99,215.97x = 7,379,423,875.60
  5. Step 5: Solve for x
    x = 7,379,423,875.60/99,215.97
  6. Step 6: Final answer
    x = 74,377.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.